Unified Interior Regions

Hawaii

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

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Island of Hawai‘i map, showing Mauna Loa and the other four volcano...

Island of Hawai‘i map, showing Mauna Loa and the other four volcano...

Island of Hawai‘i map, showing Mauna Loa and the other four volcanoes that make up the island. Mauna Loa structural features include summit caldera, rift zones, radial vents, and historical lava flows.

Solar-powered seismic station located near the summit of Mauna Loa ...

Solar-powered seismic station located near summit of Mauna Loa Volcano

Solar-powered seismic station located near the summit of Mauna Loa Volcano, Hawai‘i.

Clear day view of PG cam

[PGcam] Lower East Rift Zone Camera from Lower East Rift Zone

This image is from atop Puʻu Honuaula looking southwest towards Leilani Estates. Fissure 22 is on the far left, and Puʻu Kaliu is the cone left of center on the skyline. The fissure 8 channel wraps from the center of the image to the lower right side of the image.

Disclaimer

The webcams are operational 24/7 and faithfully record the dark of

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Shaded relief map of Kīlauea Volcano's summit with caldera bounding...

Shaded relief map of Kīlauea's summit with caldera

Shaded relief map of Kīlauea Volcano's summit with caldera bounding faults delineated.

Clear day view of Mauna Loa during tradewind conditions from the su...

Clear day view of Mauna Loa during tradewind conditions from the su...

Clear day view of Mauna Loa during tradewind conditions from the summit of Kīlauea Volcano

Cleary day view of R3 cam

[R3cam] Mobile Cam 3

This image is from a research camera positioned on the southeast flank of Puʻu ʻŌʻō, looking toward the northeast and lower east rift zone.

Disclaimer: The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic

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webcam image of shield volcano

[MKcam]: Mauna Loa's Summit and Northeast Rift Zone from Mauna Kea

Live Image of Mauna Loa's Summit and Northeast Rift Zone from Mauna Kea [MKcam].

Disclaimer: The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas. At times, clouds and rain obscure visibility. The

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At Kīlauea, when the lava column drops below the water table, groun...

At Kīlauea, when the lava column drops below the water table, groun...

At Kīlauea, when the lava column drops below the water table, groundwater may come into contact with with magma or hot rocks, causing violent steam explosions.

Clear day view of HP cam

[HPcam] Lava Flow 61G from Holei Pali

This image is from a research camera positioned on Holei Pali, looking east towards Lava Flow 61G and Kalapana.

Disclaimer

The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas.

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Image: GPS monitoring of Hawaiian Volcanoes

GPS monitoring of Hawaiian Volcanoes

The USGS Hawaiian Volcano Observatory uses a variety of ground- and satellite-based techniques to monitor Hawai‘i’s active volcanoes.  Here, an HVO scientist sets up a portable GPS receiver to track surface changes during an island-wide survey of Hawai‘i’s volcanoes.

 

Attribution: Natural Hazards

Recent changes at Kīlauea volcano - October 7, 2021

The USGS Hawaiian Volcano Observatory KWcam at Kīlauea's summit has captured changes within Halemaʻumaʻu crater, at Kīlauea's summit, due to the eruption that began on September 29, 2021. At approximately 3:21 pm, HST, new fissures opened at the base of Halemaʻumaʻu crater. These fissures opened east of the large island near the center of the lava lake that was active

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USGS
June 20, 2019

Overview of Kīlauea Volcano’s 2018 lower East Rift Zone eruption

A summary chronology and interesting facts about KILAUEA Volcano's 2018 lower East Rift Zone eruption and summit collapse.

Click image above to view PDF.

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Lava flow continues in starts and stops...
April 3, 1992

Last week we noted that, based on the activity in the pond inside Pu`u `O`o cone, the lull in activity at the episode 51 vent was probably just another pause in episode 51. Sure enough, the vent again began erupting Sunday morning about 9:30 a.m., or about the time you were reading about the eruption in last Sunday's paper.
 

Eruption pauses; earthquake shakes isle...
March 27, 1992

The eruption at the episode 51 vent slowed dramatically on Thursday at about 2:00 p.m. and by Friday morning there was no eruptive activity at the vent on the west flank of the Pu`u `O`o cone. The activity in the pond inside the Pu`u `O`o cone suggests that the current lull in activity is just another pause in episode 51.
 

No episode 52 after all, just repeats of 51...
March 20, 1992

With the wisdom of hindsight, we have concluded that the continuing episodic eruptive activity from the vent on the west flank of the Pu`u `O`o cone is a single episode with pauses, rather than a new episode with each eruption at the vent. We are therefore continuing to call the activity that began on March 7 "episode 51."

Episode 51 stops, 52 begins at Kīlauea Volcano...
March 15, 1992

Episode 51 of the nine-year long eruption along Kīlauea Volcano's East Rift Zone stopped by 4:00 p.m. Thursday afternoon. As we forecast last Sunday, this episode was brief, lasting only from March 7-12.

Kīlauea has busy week; new episode begins...
March 6, 1992

The nine-year long eruption along the East Rift Zone of Kīlauea Volcano took two dramatic turns this past week, but ended up nearly where it started. 
 

Newest episode likely to stop flowing in weeks...
February 27, 1992

Episode 50 began about 7:30 p.m. on Feb. 17 from a small fissure just southwest of the Pu`u `O`o cone. By the 19th, only about 100 feet of the original fissure was still active. The activity has since settled down at one main point near the northeastern end of the fissure. By Friday, this vent had created a spatter cone almost 25 feet high. 
 

Kupaianaha vent appears to be winding down...
February 16, 1992

Since at least April 1991, the volume of lava erupted from the Kupaianaha vent has steadily declined. Since late November, the remaining lava flows have been limited to a single area near the 1,850-foot elevation, less than two miles downslope of the vent.
 

USGS
February 7, 1992

The internal workings of Mauna Loa Volcano will be probed from space starting this week by a satellite system designed to track military vehicles rather than volcanoes.

Kīlauea Volcano divided into lava-risk zones...
January 31, 1992

Kīlauea is the world's most active volcano. About 70% of Kīlauea's surface is covered by lava less than 500 years old and over 90% is covered by lava less than 1,100 years old. Much of the surface of Kīlauea Volcano lies within Hawai`i Volcanoes National Park, where eruptions are generally welcome tourist attractions. 

The Big Island is sinking under weight of volcano...
January 24, 1992

A magnitude 3.8 earthquake occurred about 15 miles beneath Mauna Kea Volcano at 1:48 a.m. on January 21. Similar deep earthquakes occur persistently beneath the Big Island but are not restricted to any particular location.

Earthquakes swarm beneath Kīlauea Volcano...
January 17, 1992

The most notable event on Kīlauea Volcano this past week was a swarm of small earthquakes, mainly on January 13. This swarm included two earthquakes with magnitudes larger than 3.0 (see figure) and numerous smaller earthquakes. 
 

USGS
January 10, 1992

The eruption on the East Rift Zone of Kīlauea Volcano continues with low-volume, steady effusion of lava from the breakout at about the 1,900-foot level of the tube downslope from the Kupaianaha vent. This is the same area that has had active flows for the last several weeks. Tremor continues at low levels in the upper East Rift, indicating that magma continues to move in the rift zone.